Special Assignments
Abu Dhabi Photo Gallery
The pictures show electromagnetic interference, noise and vibration survey in Abu Dhabi.
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Hurcules Jet responsible for interference
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Mobile lab
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Measuring interference on proposed site
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Assessing electromagnetic interference from the airbase and using a sound meter
to assess levels of noise interference from a nearby airbase
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Simulating lorry driving over a wooden beam for vibration measurements
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Measuring impact on steel beam
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Analysing electromagnetic interference using spectrum analyser
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Using fluxgate magnetometer to measure magnetic field
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Using dish to pick up high frequency readings
Equipment Workstation in Cabin
(Right: Vibration, Centre: Electromagnetic Fields, Left: Magnetic Fields)
(S wave 1330m/sec)
The strength of the Helicopter Fly By, in comparison
with the Hover and then simulated take off is evident.
The measured axle spacing is used with time interval
between impacts to reveal vehicle speed of 40km/hr
AUGUSTA 139 Helicopter during hover and fly by trials in alignment
with road opposite cabin measurement position.
Hover at 100’ (30m) and fly by at 150 – 200’ (45 – 60m) altitude
Example of equipment deployment on Cabin Roof
A string of 60 consecutive 1 second samples of Helicopter events including site background. The steps arise because the adjacent 60 second blocks of data are not themselves consecutive. The steady high levels relate to the Helicopter Hovering in a fixed position, whilst the peak events are a simulated take off.
A Helicopter Take Off event compared to background lighter shade
